0.8.14

Ambient occlusion that works in a headset, and it is the default.

Changed

ssaoMethod defaults to projected. Scenes with ssao="on" or "auto" now get the projected method flat, which keeps antialiasing and concentrates its darkening in contacts and corners. ssao="on" now also runs in a headset, where it used to switch itself off. auto still never runs in a headset. Set ssaoMethod="screen" for the previous behaviour exactly.

Projected ambient occlusion (ssaoMethod, ssaoRate on <tosi-b3d>): occlusion computed once from a camera between the eyes and looked up by every material by world position. It is correct in stereo, uses no post-process, and is redrawn ssaoRate times a second (default 30) instead of every frame. Checked on a Quest in the SSAO demo: stereo, and no measurable change in frame rate or CPU time. Not yet measured on a heavy scene.
Projected occlusion follows shader vertex animation: the crowd is occluded in its animated pose, because every mesh draws its own depth with its own material.
The Perf Stats readout is live and shows frame interval, CPU time in scene.render(), and draw calls. It was three labels built once, so the fps was whatever it had been when the popup opened.
The SSAO demo has a bust (on the CDN at tosijs-3d/ariosto-bust.glb) and a method selector; the scene loader demo has shadow, glow and SSAO toggles.

Opening a second menu in a panel left the first one open, one list over the other. A panel now has one anchored popup at a time. (Seen in a headset, reproduced flat.)